<template>
  <div class="app-container">
    <el-form :inline="true" class="demo-form-inline">
      <!-- 标题 -->
      <el-form-item>
        <el-input v-model="searchObj.title" placeholder="标题"/>
      </el-form-item>
      <el-button type="primary" icon="el-icon-search" @click="fetchData()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
      <el-button type="primary" @click="add()">添加</el-button>
    </el-form>

    <!-- 表格 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row
      row-class-name="myClassList">
      <el-table-column
        label="序号"
        width="70"
        align="center">

        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>
      <el-table-column label="标题"  align="center" prop="title">
      </el-table-column>
      <el-table-column label="banner图" width="470" align="center">
        <template slot-scope="scope">
          <img :src="scope.row.imageUrl"  width="150px">
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center">
        <template slot-scope="scope">
          {{ scope.row.gmtCreate.substr(0, 10) }}
        </template>
      </el-table-column>
      <el-table-column label="修改时间" align="center">
        <template slot-scope="scope">
          {{ scope.row.gmtModified.substr(0, 10) }}
        </template>
      </el-table-column>
      <el-table-column label="操作" width="150" align="center">
        <template slot-scope="scope">
          <el-button type="text" size="mini" icon="el-icon-edit-outline" @click="updateData(scope.row)">编辑</el-button>
          <el-button type="text" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="fetchData"
    />
    <bannerFrom ref="banner"></bannerFrom>
  </div>
</template>

<script>
  import banner from '@/api/cms/banner'
  import bannerFrom from '@/views/cms/banner/form'
    export default {
      components:{
        bannerFrom,
      },
       data(){
         return{
           listLoading:false,
           searchObj:{
             title:''
           },
           list:null,
           total: 0, // 总记录数
           page: 1, // 页码
           limit: 10, // 每页记录数
         }
       },
      created() {
        this.fetchData();
      },
      methods:{
        fetchData(page=1){
          // 调用api层获取数据库中的数据
          console.log('加载列表')
          // 当点击分页组件的切换按钮的时候，会传输一个当前页码的参数page
          // 解决分页无效问题
          this.page = page
          this.listLoading = true
          banner.getPageList(this.page, this.limit, this.searchObj).then(response => {
            // debugger 设置断点调试
            if (response.success === true) {
              this.list = response.data.items
              this.total = response.data.total
            }
            this.listLoading = false
          })
        },
        resetData() {
          this.searchObj = {}
          this.fetchData()
        },
        removeDataById(id) {
          // debugger
          this.$confirm('此操作将永久删除banner图，是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
          }).then(() => {
            return banner.removeById(id)
          }).then(() => {
            this.fetchData()
            this.$message({
              type: 'success',
              message: '删除成功!'
            })
          }).catch((response) => { // 失败
            if (response === 'cancel') {
              this.$message({
                type: 'info',
                message: '已取消删除'
              })
            }
          })
        },
        add(){
          this.$refs.banner.openDialog()
        },
        updateData(item){
          this.$refs.banner.openDialog(item)
        }
      }
    }
</script>

<style scoped>
  .myClassList .info {
    width: 450px;
    overflow: hidden;
  }
  .myClassList .info .pic {
    width: 150px;
    height: 90px;
    overflow: hidden;
    float: left;
  }
  .myClassList .info .pic a {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
  }
  .myClassList .info .pic img {
    display: block;
    width: 100%;
  }

  .myClassList td .info .title {
    width: 280px;
    float: right;
    height: 90px;
  }
  .myClassList td .info .title a {
    display: block;
    height: 48px;
    line-height: 24px;
    overflow: hidden;
    color: #00baf2;
    margin-bottom: 12px;
  }

  .myClassList td .info .title p {
    line-height: 20px;
    margin-top: 5px;
    color: #818181;
  }
</style>
